<template>
    <div class="recommend" ref="recommend">
      <scroll ref="scroll" class="recommend-content" :data="discList">
        <div>
          <div v-if="recommends.length" class="slider-wrapper">
            <slider>
              <div v-for="item in recommends" :key="item.id">
                <a :href="item.linkUrl">
                  <!--在clas中添加needsclick，告诉了fastclick，这个标签是需要被点击的-->
                  <img class="needsclick" :src="item.picUrl" alt="" @load="loadImage">
                </a>
              </div>
            </slider>
          </div>
          <div class="recommend-list">
            <h1 class="list-title">热门歌单推荐</h1>
            <ul>
              <li
                class="item"
                v-for="(item, index)  in discList "
                :key="index"
                @click="selectItem(item)"
              >
                <div class="icon">
                  <img width="60" height="60" v-lazy="item.imgurl" alt="">
                </div>
                <div class="text">
                  <h2 class="name">{{item.creator.name}}</h2>
                  <p class="desc">{{item.dissname}} </p>
                </div>
              </li>
            </ul>
          </div>
        </div>
        <div class="loading-container" v-show="!discList.length">
          <loading></loading>
        </div>
      </scroll>
      <router-view></router-view>
    </div>
</template>

<script>
import Slider from 'base/sillder/slidder.vue'
import Scroll from 'base/scroll/scroll'
import Loading from 'base/loading/loading'
import { getRecommend, getDiscList } from 'api/recommend'
import {ERR_OK} from 'api/config'
import {playlistMixin} from 'common/js/mixin'
import {mapMutations} from 'vuex'
export default {
  mixins: [playlistMixin],
  name: 'recommend',
  components: {
    Slider,
    Scroll,
    Loading
  },
  data () {
    return {
      recommends: [],
      discList: []
    }
  },
  created () {
    this._getRecommend()
    this._getDiscList()
  },
  methods: {
    ...mapMutations({
      setDisc: 'SET_DISC'
    }),
    _getRecommend () {
      getRecommend().then((res) => {
        if (res.code === ERR_OK) {
          this.recommends = res.data.slider
        }
      })
    },
    _getDiscList () {
      getDiscList().then((res) => {
        if (res.code === ERR_OK) {
          this.discList = res.data.list
          console.log('这是disclist', this.discList)
        }
      })
    },
    // 当图片加载完之后调用这个方法，刷新better-scroll
    // 只让第一章图片出来的时候执行一次
    loadImage () {
      if (!this.checkLoaded) {
        this.$refs.scroll.refresh()
        this.checkLoaded = true
      }
    },
    handlePlaylist (playlist) {
      const bottom = playlist.length > 0 ? '60px' : ''
      this.$refs.recommend.style.bottom = bottom
      this.$refs.scroll.refresh()
    },
    // 进入歌单详情
    selectItem (item) {
      this.$router.push({
        path: `/recommend/${item.dissid}`
      })
      this.setDisc(item)
      console.log('进入歌单详情', item)
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import "~common/stylus/variable";
  .recommend
    position fixed
    top 88px
    bottom 0
    width 100%
    .recommend-content
      height 100%
      overflow hidden
      .slider-wrapper
        position relative
        width 100%
        overflow hidden
      .recommend-list
        .list-title
          line-height 65px
          height 65px
          font-size $font-size-medium
          color $color-theme
          text-align center
        .item
          display flex
          box-sizing border-box
          // 垂直方向的居中
          align-items center
          padding 0 20px 20px 20px
          .icon
            flex 0 0 60px
            width 60px
            padding-right 20px
          .text
            flex 1
            /*display flex*/
            /*flex-direction column*/
            /*justify-content center*/
            line-height 20px
            overflow hidden
            font-size $font-size-medium
            .name
              margin-bottom 10px
              color $color-text
            .desc
              color $color-text-d
      .loading-container
        position absolute
        width 100%
        top 50%
        transform translateY(-50%)
</style>
